snarfedmost properties can and sometimes are multiply valued. the meaningful q here is which ones does sem-lb actually do anything with, beyond just storing in e.g. comment meta, and for those, can it handle multiple values
[miklb]if the syndicate-to is handled inside the micropub plugin then the bridgy syndicate-to links might be able to be stored so as to be used by other micropub clients?
GWGsnarfed: Looking at the code, right now, out of the 8 properties that are white-listed, syndication is the only one that should have multiple arrays. But, since the whitelist has a filter to add properties optionally, I suggest a filter that decides whether a property should be single or multiple.
GWG[miklb]: You are confusing me. But it will work. That is what it does. Basically, right now, if you set the property, it will trigger Bridgy Publish. Moving the logic for that into the server and having plugins hook into it is a better design.
GWGsnarfed: There is a filter to tell Semantic Linkbacks to store more properties than default, if another plugin wants to use them. Therefore, extending that...
GWGOriginally, I had a blacklist, not a whitelist. It was switched to a whitelist because you don't need properties clogging up your meta if you have no use for them.
snarfedextending the filter would mean properties are stored singly or multiply depending on which plugins were installed (or not) when, which is dangerously inconsistent, even within the same site
snarfedon second though, we really shouldn't drop any data on the floor, period. we should store everything. i can rewrite the display code to handle multiply valued properties more generally. i'll do that.
snarfed GWG: re only changing properties we know about...yeah, i'm fine with that. sem-lb currently expects lots of properties singly valued though. eg everything in https://github.com/snarfed/wordpress-semantic-linkbacks/blob/master/includes/class-linkbacks-mf2-handler.php#L181-L210
GWG snarfed: Looking at the code, right now, out of the 8 properties that are white-listed, syndication is the only one that should have multiple arrays. But, since the whitelist has a filter to add properties optionally, I suggest a filter that decides whether a property should be single or multiple.